Question

Which of the following is an example of mode of transport making use of air pressure ?

• A. Sailing boat in an ocean
• B. Rowing boat on a windy day
• C. Aeroplane in a sky
• D. All the above

Answer 1

Answer: (D)

A moving boat's sail is shaped as an airfoil like the wing of a plane. When air moves over a plane's wing, from front to back, wind flowing over the top of the wing has to travel farther than wind flowing under the wing's bottom surface. This creates a pressure difference that lifts the plane.

Hence all the above is the answer.